Barbed-metal-strip fencing



(No Model.)

Q W. E.- BROOK. BARBED METAL STRIP FENCING. I

No. 293,411; Patented Feb 12, I884.

wb messas UNITED STATES PATENT 1 GFFIQE.

WILLIAM E. BROOK, on new YORK, n. Y., ASSIGNOR TO THE wAsHBUnn & MOEN MANUFACTURING COMPANY, OF WORCESTER, MASSACHUSETTS.

BARBED-METAL- SPECIFICATION forming part of Letters Patent No. 293,411, dated February 12, 1884.

Application filed December 17, 1881.

To all whom it may concern.-

Be it known that I, WILLIAM E. BROOK, of New York city, in the county and State of New York, have invented certain new and 5 and useful Improvements in Barbed-Metal- Strip Fencing; and I do hereby declare that the following is a full, clear,-and exact description of .the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure. 1 represents a section of my improved barbed fencing completed and ready for use. Fig. 2 represents a section of metallic strip after it has been cut,'so as to leave the barbs thereon preparatory to further manipulation, to produce the completed article shown in Fig. 1. Fig. 3 represents a section of the metallicbarbed fencing as it appears after the strip has been folded and the barbed edges bent out preparatory to being galvanized and twisted. Fig. 4 represents a side view of the section of fencing shown in Fig. 3, looking in the direction of arrow 1 of the same figure. Fig. 5 represents upon an enlarged scale a section on line a b, Fig. 4, looking in the direction of arrow 2 of same figure. I

To enable those skilled in the art to which my invention belongs to make and use the same, Iwill proceed to describe it more in detail. I

In the drawings, the part A represents a thiif' strip of metal, both edges of which have been so cut as to leave barbs B projecting therefrom. The strip A is folded in the mid- (lle, with the edges D D and the barbs B projecting therefrom, bent out, as fully repre sented in Figs. 1, 3, 4, and 5 of the drawings. Consequently it will be seen that the edges of the folded strip with the barbs will stand in a plane at right angles to the doubled portion of the strip at this stage of the manufac- I ture.

(N0 model.)

After the strip A has been folded to gether and the edges D D with the barbs B turned back, as shown in Figs. 3 and 5 of'the 5- drawings, the fencing is run through a bath of molten zinc in the galvanizing process, and

in this way the parts E E (shown in Figs. 1 and 5) are securely united together. The barbed strip shown in Fig. 3, after passing through the galvanizing operation, is sub jected to a twisting operation, whereby. the points F of the barbs B are left standing in different directions, as shown in Fig. 1, or, if preferred, the twisting operation may be performed before the galvanizing operation.

The barbs, if preferred, may be cut so as not to stand opposite each other, as shown in the drawings, and a very good fencing could be produced by having the barbs out only upon one edge of the strip.

From the foregoing description 'it will be seen that the strip, although the sheet metal from which it is made is quite thin, will be very stiff and strong, since it is in the form of a triangle, and the twisting of the parts turns the projecting flanges or edges D D and G so that they will resist strains from all directions.

Having described my improvements in barbed-metal-strip fencing, whatI claim therein as new and of my invention,and desire to secure by Letters Patent as an improved article. of manufacture, is

A metallic-strip fencing with barbs B cut upon one or both edges thereof andintegral therewith, the strip being folded atits center, as shown at G, with the extended flanges G and D D, substantially as and for the purposes set forth.

WILLIAM E. BRO CK. 

